Overview
Cabreiros wastewater treatment plant serves 6,200 people in Braga, Portugal. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Cabreiros wastewater treatment plant is located in the parish of Cabreiros e Passos (São Julião), within the municipality of Braga, Portugal. The plant serves a population of approximately 6,200 people, classifying it as a small agglomeration under EU regulations. As a Portuguese wastewater facility, Cabreiros operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations with a population equivalent (PE) between 2,000 and 10,000 discharging into freshwater or estuaries. The treated effluent from Cabreiros is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Cávado River basin. The Cávado River is a major watercourse in northern Portugal, supporting diverse aquatic life and providing water for agriculture and industry. The plant's location inland, more than 50 km from the coast, reduces direct marine impact, but its discharge contributes to the overall water quality of the Cávado River system.
Environmental context
The Cabreiros plant discharges into the Cávado River basin, which flows westward through northern Portugal and empties into the Atlantic Ocean near Esposende. The Cávado River supports a variety of fish species, including migratory trout and lamprey, and its estuary is an important ecological zone for birdlife. The plant's inland location means its effluent undergoes natural dilution and assimilation before reaching the coast, but nutrient loading from upstream sources can affect downstream water quality.
Frequently asked questions
The Cabreiros wastewater treatment plant is located in the parish of Cabreiros e Passos (São Julião), in the municipality of Braga, northern Portugal. The address is Rua da Bouça, Monte do Porto, 4705-768 Braga.
The Cabreiros plant serves a population of approximately 6,200 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent from Cabreiros is discharged into the local watershed, which is part of the Cávado River basin. The Cávado River flows westward to the Atlantic Ocean.
As a Portuguese wastewater facility, Cabreiros operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations with a population equivalent between 2,000 and 10,000 discharging into freshwater.
Under the EU Urban Waste Water Treatment Directive, plants serving between 2,000 and 10,000 population equivalent are generally required to have secondary treatment (biological treatment) to reduce organic matter and suspended solids before discharge.
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